This Practice Note discusses the key considerations in relation to a work-related claim for silicosis. It discusses the condition itself, the duties on the employer, causation considerations and valuing these claims.IntroductionSilicosis is an incurable lung disease caused by the inhalation of silica dust (respirable crystalline silica (RCS)) leading to progressive lung scarring and breathing impairment.It is usually associated with cumulative exposure over years, but very high exposures can cause accelerated or acute disease over much shorter periods.In occupational settings, employers have legal duties to protect workers from RCS exposure and those who develop silicosis may pursue claims when such duties have been breached.Interest in silica/silicosis claims has increased since the 2010s with the advent of artificial stone (AS), a material which often forms kitchen worktops. AS contains very high levels of crystalline silica and can, therefore, generate very high levels of RCS when cut, ground or polished. This has led to certain engineered stone being banned in Australia and increased concern over the use of the same in the UK, where HSE